Consider an online holiday booking system. The users can register to book a holiday package. Which of the following Gang of Four (GoF) patterns is the most appropriate to deal with the creation of a Booking object without exposing its creation logic? Select one: O a. Proxy O b. Decorator O c. Factory method. O d. Adapter
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Q: Consider an online holiday booking system. The users can register to book a holiday package.…
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- Consider an online holiday booking system. The users can register to book a holiday package. Currently, the system design has the Payment interface class to enable users to pay a deposit in pound sterling (GBP) for their holiday booking. The software designer would like to apply the Gang of Four (GoF) adapter pattern to handle apayment in Euro (€). Which of the following is correct for the implementation of the pattern? Select one: O a. The Payment class should implement the GBP_Adapter class. O b. The GBP_Adapter class is composed with the Euro_Adaptee class. O c. The Payment class should implement the Euro_Adaptee class. O d. The Payment class is composed with the Euro_Adaptee class.The fingerprint-based voting application can recognize users based on their fingerprint patterns. Since fingerprint authentication is unique for each person, the system can quickly identify the voters using their fingerprints. Naturally, a voter can vote for a candidate only once. The Admin adds all the names and photos of the candidates nominated for the election. The Admin then authenticates users by verifying their identity proof, and after verification, the voter is registered in the system. Furthermore, the Admin even enters the data when the election will end, after which the system will automatically delete the names and photos of the candidates and voters. The users can log in to the system via the unique user ID and password given by the Admin and then use their fingerprints to vote for their preferred candidate. Once the election is over, and the votes are counted, Both the Admin and users can view the election result using the election ID. In the capacity of a System…Consider a piece of online banking software that includes a hidden function that allows the developer to see the account information for any account with a balance of at least $10,000. This scenario is conceivable. If this was an assault, who knows what the repercussions may be?
- Create a cashiering system in Java that applies the OOP concept. There should be a receipt that will be shown after that includes the vat of 12%, the subtotal, total amount, cash, change, etc.Create a java class diagram for an address book. The contacts in the address book should contain name, address, and phone number. Also, all of the contacts are stored alphabetically so if i turn to the "D" page of the book it will show me contacts that start with the letter D. Contacts can also be personal or business.A Student can be either a graduate student or an undergraduate student. A graduate student can be either a Masters or a PhD student. An undergraduate student can be an honour student. A department has both undergrad and graduate students. A department offers courses and each course is taught by a professor. Professors, Graduate students, and Honours students do research. Every person has a name. A student has ID. A department has location and a course has ID. Write java code for the above scenario. Each attribute should have a public getter and a public setter. You should use inheritance whenever possible. You have to override the toString operation in each class that defines an attribute. The overriden toString should print out the value of the attributes in the class. The research operation takes research subject as an input string and simply prints out the research subject. The Student class should have an arraylist of courses that the student takes, and an operation to add a…
- Using SceneBuilder and Javafx create a Elevator Simmulation. The Simulation should include polymorphism and object-oriented programming. The simulation should have 4 types of Passengers: Standard: This is the most common type of passenger and has a request percentage of 70%. Standard passengers have no special requirements. VIP: This type of passenger has a request percentage of 10%. VIP passengers are given priority and are more likely to be picked up by express elevators. Freight: This type of passenger has a request percentage of 15%. Freight passengers have large items that need to be transported and are more likely to be picked up by freight elevators. Glass: This type of passenger has a request percentage of 5%. Glass passengers have fragile items that need to be transported and are more likely to be picked up by glass elevators. The simulation should also have 4 types of Elevators: StandardElevator: This is the most common type of elevator and has a request…Consider an online holiday booking system. The users can register to book a holiday package, either as a family holiday or for adults only. The software designer would like to apply the Gang of Four (GoF) factory method pattern to the system design. Which of the following should be implemented for the pattern? Select one: O a. The Package class should implement the Family Package and Adult Only_Package classes. O b. The Package class should implement the Factory class. O C. The Factory class should implement the Package class. O d. The Family Package and Adult Only_Package classes should implement the Package class.Consider an online holiday booking system. The users can register and log in to book a holiday package. The software designer would like to apply the Gang of Four (GoF) Proxy pattern to deal with access to the Booking information. Which of the following should be implemented for the pattern? Select one: a. The Booking interface should implement Real_Booking objects. b. The Proxy_Booking objects should implement the Booking interface. c. The Booking interface is composed with the Proxy_Booking objects. d. The Proxy_Booking objects should implement the Real_Booking objects.
- Draw a UML usecase diagram of the Habit tracker. A habit tracker is designed for ease of users to track daily behaviors. The application allows the user to add a habit. Each time the user adds any habit, the habit history is updated. When the user perform his habit, he mark the habit as done today and can also add a comment only if he wants. And the same is updated the habit history. A user is also allowed to delete a habit. Each time a habit is deleted the habit history is Updated. Both the user and a coach is allowed to list habits and view the habit history. In habit history view, single habit check-in can also be viewed. However, the coach is also allowed to list all the users and can view one user’s habit separately if he wantsBelow we have class diagrams with three classes for a simple java based parking management class. Use the classes below to write java code for classes :a parking observer class (that implements an observer pattern) , a transaction manager class and a parking lot class(subject to the observer). Use the class diagram and java class to implement it. You should use an observer pattern to implement your code.The main goal is to implement the following - Once a car enters (in an entry-scan only lot) or leaves (in an entry-scan and exit-scan lot), then the ParkingObserver will be updated, and then can register the charge with the parking system via the TransactionManager’s park() methodThis way, any class that implements the Visible interface can define its own behavior for making an object visible or invisible based on its specific requirements.Create the Priority Java interface, which has the methods setPriority and getPriority. A method for determining numerical priority among a group of objects should be defined by the interface. Create and implement a class named Task that represents a task that implements the Priority interface, such as one that is on a to-do list. To test some Task objects, construct a driver class.